70 lines
1.9 KiB
JavaScript
70 lines
1.9 KiB
JavaScript
import {describe, ddescribe, it, iit, expect} from 'angular2/test_lib';
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function sum(a, b) {
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return a + b;
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}
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class ConstructorWithNamedParams {
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sum;
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constructor(a, {b=1, c=2}) {
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this.sum = a + b + c;
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}
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}
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export function main() {
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describe('functions', function() {
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it('should work', function() {
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expect(sum(1, 2)).toBe(3);
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});
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describe("named parameters", function() {
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it('should pass named params as named params by using identifier keys', function() {
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function f(a, {b, c}) {return a + b + c;}
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expect(f(1, {b: 2, c: 3})).toBe(6);
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});
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it('should pass named params as a map by using quoted keys', function() {
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function f(m) {return m["a"] + m["b"];}
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expect(f({"a": 1, "b": 2})).toBe(3);
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});
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it('should compile initializers', function() {
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function f({a=1, b=2}) {return a + b;}
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expect(f({a:10})).toBe(12);
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});
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it("should call function with named params without passing any" +
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"params by providing an empty object initializer", function() {
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function f({a=1, b=2}={}) {return a + b;}
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expect(f({a: 10})).toBe(12);
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expect(f()).toBe(3);
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});
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it("should support new expressions", function () {
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var obj = new ConstructorWithNamedParams(100, {b:10});
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expect(obj.sum).toEqual(112);
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});
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});
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describe("optional params", function () {
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it("should work", function () {
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function optional(a=1,b=2){return a + b;}
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expect(optional()).toEqual(3);
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expect(optional(10)).toEqual(12);
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expect(optional(10, 20)).toEqual(30);
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});
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it("should support a mix of optional and mandatory params", function () {
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function optional(a,b=2){return a + b;}
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expect(optional(1)).toEqual(3);
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expect(optional(10)).toEqual(12);
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});
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});
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});
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}
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